TTC is frustrating

My husband and I have been try to conceive for about a year now and just when I think it's happened here comes mother nature. Like this month I am now 34 days into my cycle not my usual but it never seems to fail that my period will come just a matter of when. I want to know how different people handle infertility and that disappointment when mother nature shows up. It breaks my heart every time and it makes me feel like not even trying anymore. Thank you for any advice!